Cylinder for internal-combustion engines



Patented May 7, 1929.

PATENT OFFICE.

THOMAS E. PARROTT, OF CLABEMOBE, OKLAHOMA,.ASSIGNOR TO ALEMITE MANU-FACTURING CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF DELA-WARE.

GREASE GUN.

Application filed February 4, 1925. Serial No. 6,789.

This invention relates to new and useful improvements in grease guns,and particw larly to that class of grease guns which are adapted for usein supplying grease to the bearings of motor vehicles.

One object of the invention is to provide a grease gun whereby greasecan be properly forced intov a hearing which has become elog 'ed by therusting of the ball valve of the nipple of the bearing.

Another object is to provide a device of this character by means ofwhich the bearing nipples or fittings may be reached by the grease gun,from various angles.

Another object is to provide a grease gun of such construction that theinitial operating pressure exerted thereon will force the grease to thebearing, and the subsequent pressure exert an additional force wherebyto effectively drive the grease into the bearing.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

-In the drawing:

Figure 1 is a vertical longitudinal sec tional view through a grease gunmade in accordance with the present invention, and

in initial operating position.

Figure 2 is a horizontal sectional view on the line 22 of Figure 1.

Figure 3 is a horizontal sectional view on the line-3-3 of Figure 1.

Figure 4 is a vertical longitudinal sectional view showing the final orforcing position of the parts.

Referring particularly to the accompanying drawing, 10 represents thebarrel of the grease gun, which has the screw closure 11 on its upperend. The lower end of the barrel is tapered, as shown at 13, and isslidably telescoped on the tube 14. Within the smaller end of the barrelthere is formed a ledge or shoulder 15, on which 'rests the lowersmaller end of the tapered plunger or piston 16. Throughout the lengthof the tube 14 there is formed the bore 17, the upper end portion ofwhich is of larger diameter than the main portion thereof, as

shown at 18, said upper end of the tube bein' slidably received throughthe lower end 0 the piston 16, and into the. chamber 19, formed withinsaid piston. The ortion of the tube, within the said cham er 19, isformed with a peripheral flange 20 which rests on the shoulder 21,formed in the smaller end of the piston 16, by means of which upwardmovement of the piston is limited, under the upward force of the spring25. In the sides of the tube 14, above the flange 20, there are formedthe elongated slots 22, which establish communication between theinterior of the chamber 19 and the upper portion 18 of the bore.Slidably disposed in the upper end of the bore is a plunger stem 23, theu per end of which is formed with a shoul ered head 24. En-

circling the said upper portion of the tube 14, and the said stem 23,and bearing at its opposite ends against the flange 20, and a former ofwhich snugly engages with the wall of the barrel. Formed through thewashers and the disk 27, are the circular series of openings 30, whichprovide passages for the grease to flow. from the barrel into thechamber 19, as will be explained later herein.

The lower end of the bore 17 is slightly enlarged in diameter, as shownat 31, and seated within this portion of the bore is a ball valve 32,said valve being yieldably held to its seat by the coil spring 33, whichengages with the .ball, and with a shoulder 34, formed in said portionof the bore, below the seat. Removably engaged on the lower end of thetube 14 is a nipple, or nozzle, 35, and formed longitudinally throughthis nipple is a assage 36, which alines with the bore 17, or passage ofgrease. into the automobile fitting 37, which fitting is provided with as ring ressed ball valve 38. The lower en of t e nipple is formed with adepression 39 and in thecenter of this de- May 7, 1929. H. A. PALMER1,711,904

CYLINDER FOR INTERNAL COMBUSTION ENGiNES Filed April 11, 1927 2Sheets-Sheet 2 I/ I I I l I I I l l g .4 g i i a v INVENTOR.

v ll'arry 11 Palmer,

ATTORNEY.

Patented May 7, 1 929.

UNITED. STATES PATENT. OFFICE.

HARRY A. PALMER, OF D'ORCHESTEB, MASSACHUSETTS, -ASSIGNO R TO PALMER IN-VENTIONS, INQ, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHU-SETTS.

CYLINDER FOR INTERNAL-COMBUSTION ENGINES.

Application filed April 11,

.This invention relates to internal combustion motors, more particularlythe Cylinders thereof, and is designed primarilyfor use in connectionwith the form'of internal combustion engine as disclosed in myapplication Serial No; 182,806, filed April 11, 1927, but it is to beunderstood that a cylinder for internal combustion motors, in accordancewith this invention can be used in connection with any type of enginefor which it is found applicable, and the invention has for its objectto provide, in a manner as hereinafter set forth a cylinder having meansco-r-elating with the piston operating therein to provide for coolingthe latter by atmospheric air during its operation.

' A further object of the invention is to provide, in a manner ashereinafter set forth, a cylinder for internal combustion motorsproviding a piston chamber and further provided with a valvedcontrolledby-pass for conducting an incoming combustible charge from theinner end of the piston chamber to the combustion space for the latterforthe latter.

wardly of the piston on the power stroke of provide, in a manner ashereinafter set forth a cylinder for internal combustion motorsconstructed and arranged to provide for the travel of a wrist pin bodilycarried bythe piston -tran'sversely of and projecting from A furtherobject of the invention is to provide, in a manner as hereinaftersetforth a cylinder for internal combustion motors constructed andarranged to provide for the complete scavenging therefrom of the exhaustgases. v

A urther object of the invention is to provide, in a manner ashereinafter set forth a cylinder for internal combustion motorsconstructed and arranged to provide an enclosing means for guide membersfor a travr selling wrist pin bodily carried by the piston of the motor.

Furtherobjects of the invention are to provide, in a manner ashereinafter set forth a cylinder for internal combustion motors which issimple in its construction and arrangement, strong, durable, compact,thoroughly eflicient in its use, readily. set up and comparativelyinexpensive to manufacture.

1927. Serial No. 182,805.

With the foregoing and other objects in view the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically descrlbed and illustrated in theaccompanying drawings wherein is shown an embodiment of the invention,but it is'to be understood that changes, variations and modificationscan be'resorted to which fall within the scope F gure 3 is a'section online 3-3 Figure 2.

Figure 4 is an elevation of a cylinder for lnternal combustion motors inaccordance with this invention. a

V Figure 5 is a view similar to Figure 4 but taken at right anglesthereto. 2 '2 Figure 6 is a section on line 6-6 of Figure 4. i

Referring to the drawings in detaill denotes a power transmittingshaft,2 a platform, 3 bearings for the shaft 1, A lubricant reservoirs for thebearings and shaft, 5 a support for. the platform, 6,7 'a pair ofimpellers for operating the shaft 1, which are fixedly secured tothelatter, as indicated at 8, and provide means when operated forrotatingthe shaft'l. An operating means for the impellers 6, 7 isindicated at 9 and which include a wrist pin 10. The foregoing elementsform parts of an internal combustion engine of a'construction similar tothat disclosed in my application as afor e-' said. The wrist pin 10 iscarried by and operated bythe piston 11, which is hollow and closed atits ends by the heads 12, 13 and said piston 11 forms a cooling airreceiving chamberl ifand .is provided at diametrically oppositepointswith lengthwise extending slots 15, to provide for circulation ofatmospheric air through the chamber 14: and to cool the piston. Theforward head 12 of the: piston is provided with rearwardly extendingspaced cooling fins 16.1 The form of piston referred to is as disclosedmy application aforesaid. As the subject matter of this applicationrelates to the cylinder construction referred togenerally by thereference character 17, it is thought unnecessary to specificallydescribe any of the structural features illustrated, other than thecylinder construction.

The cylinder 17 comprises a body portion 18 having its inner or rear endopen and its forward end closed, as indicated at 19 and provided withmeans, as at 20 for connecting a spark plug therewith. The body portion18 forms a piston chamber 21 and the forward part of said chamber 21provides a combustion space 22. The inner end of the body portion 18 isformed with a laterally extending continuous flange 28 through whichextends holdfast devices 241 for fixedly securing the cylinder 17 to theplatform 2 and the latter closes the inner end of the piston chamber 21.The inner end of the body portion 18, as well as the flange 23 is cutaway to form a port 24 for a purpose to be presently referred to.

Formed integral with the flange 23 and also with the body portion 18 fora portion of its length is an oiiset web 25, which provides a by-pass 26and the port 24 communicates with the inner end of said lay-pass 26 andestablishes communication between the inner end of the piston chamber 21and said by-pass 26. Arranged within the bypass 26 in proximity to itsinner end is a spring controlled check valve 27 which normally closesthe bypass 26 to the piston chamber 21. The valve 27 is operated on thepower stroke of the piston so that the combustible charge can beforcedfrom the piston chamber 2111p through the by-pass and into the cylinderforwardly of the pis-' ton 17.

The body portion 18 is formed with a circumferentially extending narrowintake 28, which is bridged as at 28 and opposing the intake 28, as wellas being of greater width than the width thereof, is an outlet port 29for the exhaust gases and which is bridged at at 29. v The upper end ofthe web 25 is extended laterallyin opposite directions or flared as at30 andsaid flared end is secured to the body portion 18 above the intake28. Formed integral with the body portion 18 are extensions 31, 82'which are also integral with the upperend 30 of the web 25 and saidextension and upper end 30 provide means for enclosing the intake 28.The flared upper end of the web 25 is of greater length than the lengthof the intake.

The body portion 18 at dia1netrically opposite points is formed withlengthwise ex tending slots 33, 8 1 the latter registering witha'tubular member which is integral with the body portion 18 of the web25. The slots 33, 341- are adapted to register with the slots 15 in thepiston whereby during the operation of the latter means is set up toprovide for the intake and exhaust of atmospheric air for the purpose ofcooling the piston. By this arrangement an air cooled piston is set up.

The slots 33, 84: are arranged below the intake 28 and exhaust port 29and below the same. The body portion 18, at right angles to the exhaustport 29 is formed with a pair of peripheral enlargements 36 each formedwith a pair of opposed arms 37 and each enlargement, with its arms formsan enclosing means for a guide member 38. The guide members are channelshaped and form elements of the internal combustion engine as disclosedin my application aforesaid. The enlargements 36 are provided with slots89 which register with slots 10 formed in the guide members and theregistering slots form clearances for the travel or" the wrist pin 10during the reciprocation of the piston 11. That portion of the cylinderabove the intake 28 is provided with cooling fins ll which extend acrossthe top of the cylinder.

Formed integral with the body portion 18 and extending into the by-pass26 is a tapered annulus 42 which provides a seat for a controllingvalve, not shown, for the intake 28. The web 25 is formed with anopening 13 disposed to align with the axis of the annulus- 12 and saidweb 25 is furthermore provided with an outwardly projecting integralsleeve 14% which registers with the opening 43 and is adapted to receivethe valve stem of the controlling valve for intake extending, oppositelydisposed guide receiving means positioned at right angles to andarranged below said openings, integral with the outer face of the bodyportion on opposite sides thereof and further extending lengthwise ofthe latter, said body portion formed with a lengthwise extending slot atthe front, back and sides thereof and positioned inwardly with respectto said openings, the slots at said sides opening into said guidereceiving means, an offset web integral with the outer periphery of thebody portion and extending above and below said guide receiving meansand further integral said openings,

with one of the sides of each of said guide receiving means andproviding a by-p'ass communicating at its upper portion with said intakeopening and at its lower end communicating with the interior of saidbody portion, and means within the bypass and integral with the web andbody portion to provide a seat for a valve, said seat 0pposing saidintake opening.

2. A cylinder for an internal combustion motor comprising a body portionformed with intake and exhaust openings, laterally extending, oppositelydisposed guidereceiving means positioned at right angles to and arrangedbelow said openings, integralwith the outer face of the body portion onopposite sides thereof and further extending lengthwise of the latter,said body portionformed with a lengthwise extending slot at the front,back and sides thereof and positioned inwardly with respect to the slotsof said sides opening into said guide receiving means, an offset webintegral with the outer periphery of the body portion and extendingabove andbelow said guide receiving means and further integral with oneof the sides of each of said guide receiving means and providing aby-pass communicating at its upper portion with said intake opening andat its lower end communicating with the interior of said body portion,means within the by-pass and integral with the web and body portion toprovide a seat for a valve, said'seat opposing said intake opening, andmeans on the web and opposing said seat to provide a guide for a valvestem.

3. A cylinder for an internal combustion motor comprising a body portionformed with intake and exhaust openings, laterally extending, oppositelydisposed guide receiving means positioned at right angles towandarranged below said openings, integral with the outer face of the bodyportion on opposite sides thereof and further extending lengthwise ofthe latter, said body portion formed with a lengthwise extending slot atthe front, back and sides thereof and positioned inwardly with respectto said open ings, the slots at said sides opening into said guidereceiving means, an offset web integral with the outer periphery of thebody portion and extending above and below said guide receiving meansand further integral with one of the sides of each of said guidereceiving means and providing a by-pass communicating at its upperportion with said intake opening and at its lower end communicating withthe interior of said body portion, means within the by-pass and integralwith the web and body portion to provide a seat for a valve, said seatopposing said intake opening, and means integral with said body portionand web to provide a continuation of one of said slots.

4. A cylinder for an internal. combustion motor comprising a bodyportion formed with intake and exhaust openings, laterally extending,oppositely disposed guide receivingmeans positioned at right angles toand arranged below said openings, integral with the outer face of thebody portion on opposite sides thereof and further extending lengthwiseof the latter, said body portion formed with a lengthwise extending slotat the front, back and sides thereof and positioned inwardly withrespect to said openings, the slots at said sides opening'into saidguide receiving means, an offset web integral with the outer peripheryof the body portion and extending above and below said guide receivingmeans and further integ 'al withone ofthe sides of each of said guidereceiving means and providing a by-pass and opposing said seat toprovide a guide for a valve stem, and means integral with said bodyportion and web to provide a continuation of one of said slots.

In testimony whereof, I affix my signature hereto.

HARRY A. PALMER. 1

